cached methods

cacheable.rb

module Cacheable

  def store
    Rails.cache
  end

  def cache(*attributes)
    attributes.each do |attribute|
      if attribute.is_a?(Hash)
        wrap(attribute.keys.first, attribute[attribute.keys.first])
      else
        wrap(attribute)
      end
    end
  end

  private

  def wrap(method, options = {})
    define_method("#{ method }_cache") do |*args|
      self.class.store.fetch("#{ method }_#{ args.join('_') }", options) do
       if args.empty?
         send(method)
       else
         send(method, *args)
       end
      end
    end
  end
end